RonaldTerceros

Multi-tenant backend in NestJS, TypeScript, PostgreSQL and Prisma with tenant isolation, row-level security, JWT auth and role-based access across multiple business locations. A modular system lets each business turn on the capabilities it needs (point of sale, inventory, cash, recipes, kitchen workflows) from one shared platform, with domain-driven design keeping the business logic maintainable as modules grow. The cross-platform POS runs on desktop and touch devices from a single React codebase (Vite, Ant Design, Zustand, Capacitor, Electron). pnpm and Turborepo monorepo with shared Zod contracts, GitHub Actions CI/CD, and Docker and Traefik on a VPS. AI-assisted development was used under direct supervision to speed up delivery.

Multi-tenant SaaS backend in NestJS, TypeScript, PostgreSQL and Prisma, with tenant isolation enforced at the query level, row-level security (RLS) on a Neon Postgres database, and AsyncLocalStorage (ALS) carrying per-request tenant context. Secure authentication, role-based access control and workflows across the textile domain: products, variants, production attributes, pricing structures and order states. The React frontend (Vite, Ant Design, TanStack Query, React Hook Form) installs as a PWA and streamlines order management, image handling and document generation, with drag-and-drop order building (dnd-kit), Cloudinary uploads and Word/Excel export. GitHub Actions CI/CD with Docker and Traefik on a VPS (Contabo).

NestJS, TypeScript and PostgreSQL (Prisma) backend with JWT authentication and role-based access for drivers, passengers and admins. Reliable Stripe payment processing with webhook handling, automated retries and transaction-consistency safeguards. Background automation for the ride lifecycle, reminders and notifications, plus AWS (S3, SES, SNS) and Google Maps integrations. CI/CD on GitHub Actions with Docker and Traefik on AWS. React Native and Expo client with role-based experiences and payment flows.

Multi-tenant SaaS in NestJS, TypeScript, PostgreSQL and Prisma. Stripe subscriptions, Shopee marketplace synchronization and AWS for billing, e-commerce and customer communications. Background workflows for data synchronization and billing automation, with input validation, structured logging, API documentation, health monitoring and automated testing. Multi-stage Dockerfile shipped to AWS ECR/ECS through GitHub Actions. Frontend features in Next.js and React.